Jens Gramm Tzvika Hartman Till Nierhoff Roded Sharan Till Tantau On the Complexity of SNP Block Partitioning Under the Perfect Phylogeny Model. 92-102 2006 conf/wabi/2006 WABI http://dx.doi.org/10.1007/11851561_9 db/conf/wabi/wabi2006.html#GrammHNST06